1639863

素因数分解:

$3^2\times {\mathrm{29}}^1\times {\mathrm{61}}^1\times {\mathrm{103}}^1$

素因数の和:199

約数の個数: 24

約数和(自身を含む): 2514720

約数和(自身を除く): 874857

約数列:

[1, 3, 9, 29, 61, 87, 103, 183, 261, 309, 549, 927, 1769, 2987, 5307, 6283, 8961, 15921, 18849, 26883, 56547, 182207, 546621, 1639863]

約数ペア:

[(1, 1639863), (3, 546621), (9, 182207), (29, 56547), (61, 26883), (87, 18849), (103, 15921), (183, 8961), (261, 6283), (309, 5307), (549, 2987), (927, 1769)]